Add babel polyfil about scratch-js

[zxqx]

+1

[richgilbank]

@BerkeleyTrue @zakangelle Just taking a look at this now - Could you provide a quick little snippet to test against?

[BerkeleyTrue]

Sure

var map = new Map();
map.set('cat', 'foo');

console.log(...map);

converts to

"use strict";

var _toConsumableArray = function (arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } };

var map = new Map();
map.set("cat", "foo");

console.log.apply(console, _toConsumableArray(map));

[richgilbank]

@BerkeleyTrue Thanks for this. I have to admit though, I'm not sure I understand the ask. If you're asking to include the Babel polyfill, it should already be included and working as per here. Array.from also seems to be behaving as expected:

var m = new Map([[1, 2], [2, 4], [4, 8]]);
console.log(Array.from(m));

// [[1,2],[2,4],[4,8]]

Is there another polyfill you're asking to include?

[BerkeleyTrue]

It looks like this is working now. I haven't tried using spread no iterables in a long time. Will close this.